VSEPR Geometries – Reference sheet
# of vepairs
2
0 lone pair
1 lone pair
2 lone pairs
3 lone pairs
Linear AX2
(180o)
3
Trigonal Planar AX3
(120o)
Bent AX2E
(<120o)
Tetrahedral AX4
(109.5o)
Trigonal Pyramidal AX3E
(<109.5o)
Bent AX2E2
(<109.5o)
Trigonal Bipyramidal AX5
(90o / 120o)
Seesaw AX4E
(<90o)
T-Shape AX3E2
(<90o)
Octahedral AX6
(90o)
Square Pyramidal AX5E
(<90o)
Square Planar AX4E2
(90o)
4
5
6
Linear AX2E3
(180o)
VSEPR
type
Nonpolar
Polar
CO2
HCN
AX2
VSEPR
type
Nonpolar
Polar
CCl4
CH3Cl
AX4
SO2
AX2E
SF4
AX4E
H2O
AX2E2
XeF4
XeF3Cl
PCl5
PCl4F
AX4E2
XeF2
AX2E3
BF3
COCl2
AX3
AX5
NH3
AX3E
IF5
AX5E
ClF3
AX3E2
SF6
AX6
SF5Cl
Ch. 22 Organic Chemistry
Functional Groups
Class of
Compound
Halide
(Halocarbon)
Alcohol
Functional
Group
-F
- Br
- Cl
-I
- OH
General
Formula
Naming suffix
CH3Cl
Chloroethane
R–X
R - OH
Example
-ol
ethanol
Ether
-O-
R – O – R’
--- ether
diethylether
Aldehyde
-al
ethanal
Ketone
-one
propanone
Carboxylic acid
-oic acid
Ethanoic acid
Ester
-oate
ethylpropanoate
Amine
Amide
-NH2
-NH- or -Nı
-amine
ethanamine
-amide
ethanamide